EXHIBIT 12

TENNECO INC. AND CONSOLIDATED SUBSIDIARIES

COMBINED WITH 50% OWNED UNCONSOLIDATED SUBSIDIARIES

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Years Ended December 31,
	2012		2011		2010		2009			2008
	(Dollars in Millions)
Net Income (loss) attributable to Tenneco Inc.	$	275	$	157	$	39	$	(73	)	$	(415	)
Add:
Interest expense		105		108		149		133			113
Portion of rentals representative of the interest factor		18		17		15		14			15
Income tax expense and other taxes on income		19		88		69		13			289
Noncontrolling interests		29		26		24		19			10
Amortization of interest capitalized		4		4		4		4			3
Undistributed (earnings) losses of affiliated companies in which less than a 50% voting interest is owned		1		—		—		2			(2	)
Earnings as defined	$	451	$	400	$	300	$	112		$	13
Interest expense	$	105	$	108	$	149	$	133		$	113
Interest capitalized		4		4		4		4			6
Portion of rentals representative of the interest factor		18		17		15		14			15
Fixed charges as defined	$	127	$	129	$	168	$	151		$	134
Ratio of earnings to fixed charges		3.55		3.10		1.79		—			—

NOTE: Earnings were inadequate to cover fixed charges by $39 million for the year ended December 31, 2009 and by $121 million for the year ended December 31, 2008.